# The tongue is also a fire

"The tongue is like a fire"

# a world of evil set among our members

The enormous effects of sinful speaking are spoken of as if they were a world by themselves. 

# our members

"the members of our bodies" or "the parts of our bodies"

# The tongue defiles the whole body

"For God rejects a person who speaks evil words"

# sets on fire the course of life

"it ruins a person's entire life"

# life, and is itself set on fire by hell

"life because the devil uses it for evil"